With the nuclear and humanitarian crisis in Japan, major political changes in North Africa and the Middle East, and heated budget battles here in the United States, you'd be forgiven for not remembering that nearly one year ago the Gulf of Mexico was dominating the news.

On April 20, 2010, the Deepwater Horizon oil rig exploded, killing 11 people and opening up a well that pumped nearly 5 million barrels of oil into the ocean. It was the largest oil spill in U.S. history.

At a recent staff meeting a Smithsonian colleague mentioned that one of his pastimes this summer has been keeping tabs on the Arctic sea ice. The question that's on many Arctic-watchers' minds is whether or not the 2011 sea ice coverage will reach a new record low.

This week at the Smithsonian Ocean Portal we embark on an experiment we're calling "Make Me Care." The concept is simple: we ask a renowned expert to tell us why we should care about his or her marine subject matter. We're giving them only about a minute on video to accomplish the task, so it's a difficult - and not very fair - challenge.